Inverted Hybrid Light-Emitting Diodes Using Carbon Dots as Selective Contacts: The Effect of Surface Ligands
We describe the use of carbon dots (C-Dots) as selective contacts for electronic holes in inverted hybrid light-emitting diodes. Moreover, we have studied the effect of the C-Dots’ amine-derivative surface ligands and their impact on the device performance. The different surface ligands affect not o...
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Published in | ACS applied electronic materials Vol. 2; no. 5; pp. 1388 - 1394 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
American Chemical Society
26.05.2020
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Subjects | |
Online Access | Get full text |
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Summary: | We describe the use of carbon dots (C-Dots) as selective contacts for electronic holes in inverted hybrid light-emitting diodes. Moreover, we have studied the effect of the C-Dots’ amine-derivative surface ligands and their impact on the device performance. The different surface ligands affect not only the optical properties of the C-Dots but also the device turn-on voltage and the luminance parameters despite not forming part of the emissive layer. For instance, the C-Dots capped with the aromatic ring p-phenylenediamine show unfavorable effects, whereas the effect of nonaromatic capping ligands depends upon the length of their molecular backbone. |
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ISSN: | 2637-6113 2637-6113 |
DOI: | 10.1021/acsaelm.0c00163 |